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All results from a given calculation for C4H5N ((Z)-2-Butenenitrile)

using model chemistry: B1B95/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B1B95/3-21G
 hartrees
Energy at 0K-208.897305
Energy at 298.15K-208.902042
Nuclear repulsion energy142.157881
The energy at 298.15K was derived from the energy at 0K and an integrated heat capacity that used the calculated vibrational frequencies.
Vibrational Frequencies calculated at B1B95/3-21G
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A 3219 3080 4.08      
2 A 3194 3056 5.21      
3 A 3157 3020 2.03      
4 A 3059 2927 5.39      
5 A 2345 2244 8.83      
6 A 1707 1633 9.73      
7 A 1540 1473 20.38      
8 A 1463 1399 16.53      
9 A 1445 1382 1.01      
10 A 1294 1238 1.35      
11 A 1153 1103 2.12      
12 A 983 940 15.76      
13 A 912 873 2.29      
14 A 707 676 1.31      
15 A 433 414 0.19      
16 A 175 167 3.37      
17 A 3115 2980 7.54      
18 A 1541 1474 13.55      
19 A 1103 1055 0.43      
20 A 1016 972 1.24      
21 A 800 766 45.56      
22 A 589 563 12.88      
23 A 310 297 1.88      
24 A 154 148 0.30      

Unscaled Zero Point Vibrational Energy (zpe) 17706.3 cm-1
Scaled (by 0.9567) Zero Point Vibrational Energy (zpe) 16939.7 cm-1
See section III.C.1 List or set vibrational scaling factors to change the scale factors used here.
See section III.C.2 Calculate a vibrational scaling factor for a given set of molecules to determine the least squares best scaling factor.
Rotational Constants (cm-1) from geometry optimized at B1B95/3-21G
ABC
0.39754 0.11794 0.09252

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.206 0.248 0.000
N2 -2.196 -0.366 0.000
C3 0.000 0.995 0.000
H4 -0.105 2.074 0.000
C5 1.211 0.425 0.000
H6 2.083 1.071 0.000
C7 1.460 -1.051 0.000
H8 0.521 -1.609 0.000
H9 2.042 -1.339 0.882
H10 2.042 -1.339 -0.882

Atom - Atom Distances (Å)
  C1 N2 C3 H4 C5 H6 C7 H8 H9 H10
C11.16531.41842.13212.42333.39052.96522.53623.72153.7215
N21.16532.58373.21343.49784.51443.71962.98844.43774.4377
C31.41842.58371.08411.33892.08472.51342.65623.22493.2249
H42.13213.21341.08412.11042.40723.49503.73644.12824.1282
C52.42333.49781.33892.11041.08581.49632.14792.14022.1402
H63.39054.51442.08472.40721.08582.21213.10282.56742.5674
C72.96523.71962.51343.49501.49632.21211.09221.09601.0960
H82.53622.98842.65623.73642.14793.10281.09221.77941.7794
H93.72154.43773.22494.12822.14022.56741.09601.77941.7647
H103.72154.43773.22494.12822.14022.56741.09601.77941.7647

picture of (Z)-2-Butenenitrile state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C3 H4 116.220 C1 C3 C5 122.992
N2 C1 C3 179.994 C3 C5 H6 118.209
C3 C5 C7 124.788 H4 C3 C5 120.788
C5 C7 H8 111.190 C5 C7 H9 110.347
C5 C7 H10 110.347 H6 C5 C7 117.003
H8 C7 H9 108.812 H8 C7 H10 108.812
H9 C7 H10 107.228
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.285      
2 N -0.490      
3 C -0.195      
4 H 0.260      
5 C -0.147      
6 H 0.231      
7 C -0.666      
8 H 0.246      
9 H 0.238      
10 H 0.238      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  3.738 1.119 0.000 3.902
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -34.201 -2.506 0.000
y -2.506 -26.912 0.000
z 0.000 0.000 -30.853
Traceless
 xyz
x -5.319 -2.506 0.000
y -2.506 5.615 0.000
z 0.000 0.000 -0.296
Polar
3z2-r2-0.593
x2-y2-7.289
xy-2.506
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 9.233 -0.046 0.000
y -0.046 5.821 0.000
z 0.000 0.000 3.101


<r2> (average value of r2) Å2
<r2> 124.326
(<r2>)1/2 11.150